Mercedes W204 Coolant Cooler Water Thermostat A6512002700

The Mercedes W204 Thermostat Housing A6512002700 is an original cooling system component designed for precise coolant flow management in Mercedes W204 engines. Thanks to its factory-matched geometry and integration with the original system, the housing ensures stable thermostat operation and helps maintain the correct operating temperature of the power unit, contributing to safe vehicle operation.

Specifications and technical data

• SKU: A2712000315
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2712000315
• Substitutable numbers: A2712000315, A 271 200 03 15
• Category: Coolant Hoses

Role of the Thermostat Housing in the Cooling System

The thermostat housing in the Mercedes W204 is a crucial element in controlling the flow of coolant between the engine block and the radiator. It is responsible for securely seating the thermostat, properly directing the cooling medium, and maintaining adequate pressure within the circuit. A correctly selected housing minimizes the risk of leaks, localized overheating, and uncontrolled temperature drops, which directly impacts engine durability and operational stability.

Cooling System Hoses and Pipes – Integration with the Housing

The presented housing works in conjunction with components from the Cooling System Hoses and Pipes group, creating a cohesive coolant flow path. The appropriately shaped spigots and connection surfaces allow for secure attachment of flexible and rigid hoses, reducing the risk of leaks and unwanted vibrations. Proper fitment with original hoses facilitates installation, shortens service time, and helps maintain the original performance characteristics of the cooling system.

Benefits of Using an Original Thermostat Housing

Using an original thermostat housing in the Mercedes W204 allows for the preservation of parameters specified by the vehicle manufacturer. The most significant advantages include:

• stable thermostat operating conditions and predictable radiator circuit opening,
• better compatibility with factory cooling system hoses and pipes,
• reduced risk of leaks at connections due to precise geometry,
• maintenance of the engine's correct operating temperature, promoting its longevity.

For the user, this translates to more predictable power unit behavior, a lower risk of overheating-related failures, and easier diagnosis of potential future issues. Choosing an original component is particularly important in vehicles where the cooling system operates under high thermal load.

Item Condition and Installation Aspects

The thermostat housing is offered as a used part, enabling economical repairs while maintaining original design specifications. Before installation, standard service procedures are recommended: inspection of sealing surfaces, verification of the thermostat seat, and checking the condition of the connections for any mechanical damage. A properly prepared component, when connected with a correctly selected thermostat and functional hoses, allows for the restoration of proper coolant circulation in the vehicle.

Technical Support and Additional Information

When working on the cooling system, it is advisable to expand your knowledge on typical overheating symptoms and diagnostic procedures. Practical tips for operating and repairing cooling systems can be found in the article: Engine Cooling System – Overheating, Repair, and Used Radiators. This will help you better plan the scope of service work and make informed component choices.

If you are planning a comprehensive repair or upgrade of the cooling system area in your Mercedes and need other parts from the same group, such as flexible hoses, rigid pipe sections, or coolant connectors, check the available parts in the category Mercedes Cooling System Hoses and Pipes.